added description to tutorials from identity providers section of rea…

…dme (#596)

flutter_appauth/CHANGELOG.md

@@ -8,6 +8,7 @@
 * Bumped `flutter_lints` dev dependency
 * Fixed typo in the code snippet shown in the **End session** section of the readme. Thanks to the PR from [barryguvenkaya](https://github.com/barryguvenkaya)
 * Updated readme to add a table of contents
+* Updated links to tutorials associated with identity providers. The Auth0 one has been removed as their tutorial has changed to use a different SDK. A disclaimer has been added to warn that the content is managed by external parties and may also be out of date
 
 ## [8.0.2]
 

flutter_appauth/README.md

@@ -26,9 +26,10 @@ A Flutter bridge for AppAuth (https://appauth.io) used authenticating and author
 
 ## Tutorials from identity providers
 
+The following are tutorials from identity providers that reference using this plugin. If the identity provider you're using isn't in this list, it doesn't mean that plugin doesn't work with it. It only means that these are some of the identity providers that have tutorials that specify that developers can use this plugin. Generally, if your identity provider supports OAuth 2.0 and follows the industry standards and specifications then the plugin can be expected to work. Developers should also note that the following links are managed by external parties. If you choose to open these links, do so at your own risk and be aware that it's possible the content may be out of date
+
 * [Asgardeo](https://wso2.com/asgardeo/docs/tutorials/auth-users-into-flutter-apps/)
-* [Auth0](https://auth0.com/blog/get-started-with-flutter-authentication/)
-* [FusionAuth](https://fusionauth.io/blog/2020/11/23/securing-flutter-oauth/)
+* [FusionAuth](https://fusionauth.io/docs/quickstarts/quickstart-flutter-native#setting-up-appauth)
 
 
 ## Getting Started